CITYCOREBUILDERSCityCore Builders · Queens, New York
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Rear, side, and full-floor additions for Queens homes, with zoning checks and DOB permits handled from start to sign-off. We help you add real living space while keeping the work code-compliant and on schedule.
The basics
A home addition expands your existing house with new conditioned space, such as a rear extension, a side extension, or an added upper floor. In Queens, the design must fit your zoning district and lot, the work needs DOB approval, and most additions trigger a new or amended certificate of occupancy once the space is finished.
Scope

We check your zoning district, floor area ratio, yard requirements, and height limits before design so the addition is buildable on your lot.

Architectural plans plus the structural framing, footings, and tie-ins needed to carry the new load into your existing house.

Excavation, new foundation or slab, and framing for rear, side, or full-floor additions, weather-tight before interior work begins.

Roofing, siding, windows, insulation, and air sealing that tie the new section cleanly into the original structure.

Electrical, plumbing, heating, and cooling extended into the addition, with load checks on your existing service and systems.

Drywall, flooring, trim, paint, and fixtures so the new rooms match the rest of the home and are ready to use.
NYC specifics
Most additions are filed with the DOB as an Alt-1 because they change the building's certificate of occupancy, for example by adding floor area or a new story. Smaller changes that do not alter the C of O may file as an Alt-2. Plans are reviewed for zoning, egress, light and ventilation, and energy code before a permit is issued.
If your home sits in a flood zone, the addition must meet FEMA and DOB elevation rules for the AE or VE zone, which can affect foundation height and mechanical placement. Properties in a historic district or with a landmarked building also need LPC review before the DOB will sign off.
Confirm lot coverage and yard setbacks early; check FAR headroom against existing square footage; verify egress and window sizing for new bedrooms; budget time for DOB plan exam and, where required, LPC and flood-zone review.
Coverage
We design and build home additions across Queens. Start with the borough hub, or explore a few of the regions we serve most often.
Get started
Tell us about your house and what you want to add. We will review your zoning and lot and walk you through the path to a DOB permit.